Year	current international $
2000	48.369571167628
2001	51.0095300624927
2002	54.452767383774
2003	57.7519745348432
2004	59.9035474289467
2005	72.0193400902224
2006	62.1029163966607
2007	51.6088625806198
2008	77.7721426849255
2009	87.6540319864949
2010	86.7836350172121
2011	116.797604488904
2012	125.910287252628
2013	132.692353742043
2014	125.662579831653
2015	121.154224565247
2016	132.827777610173
2017	130.744896064583
2018	159.717539685578
2019	205.213498567918
2020	199.038036888168
2021	197.959675035079